His problem has always been the first week of Wimbledon, not the second week.
"Doesn't matter if he miss or not", said Del Potro.
Here's how the last eight men standing match up.
Nadal hit 37 winners to only 12 unforced errors and erased the only break he allowed by breaking back immediately in the third set.
The Frenchman was not embarrassed in the third set either as Federer settled for a single break of serve to close out the match.
"After five years of first-round losses here, I think I've grown a lot to get to the semi-finals. If it happens, it happens". Isner has unleashed a tournament-leading 135 aces while Canadian 13th seed Raonic is in second place, having fired 117.
Williams dropped her first set at this tournament as the 52nd-ranked Giorgi produced an impressive display of power and accuracy in the opener.
Anyway, a 16th Wimbledon Quarter Final awaits, 81 service holds now in a row and 31 sets won on the spin at SW19. "I was inspired. I wanted to play exactly like him and do the same results". "If they're not moving as well, it's hard for them to be in balance for passing shots".
Wherever he ends up playing, Djokovic, the 2011, 2014 and 2015 champion, will be favourite to see off Nishikori for a 14th time in 16 meetings.More news: Duke and Duchess of Cambridge announce six godparents for Prince Louis
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"At the same time, I have been in that position a couple of times in my career. I feel physically, mentally ready, fit, positive".
Djokovic has not won a Slam for two years after battles with an elbow problem and his progress to the quarter-finals has largely gone under the radar. Facing Roger again [would] be something fantastic. Anderson is the first South African man in the Wimbledon last-eight since Wayne Ferreira in 1994.
The 32-year-old looks refreshed following his decision to pull out of Queen's and now, unlike Del Potro, has had the benefit of a day off.
Hsieh's protests to the umpire prompted the match referee to come on court to intervene as the argument lasted over seven minutes before the point was finally replayed, much to Cibulkova's disgust.
The 36-year-old Federer has qualified for the last-eight at Wimbledon 2018 without dropping a set and now has won 32 straight sets at All England Club now.
"It will be a different match that we played in Paris a few weeks ago", Del Potro told reporters.
"I guess there are other factors that play in".